CVE-2026-114383 Details
Description
A weakness has been identified in TOTOLINK EX200 5.2.3c.7200. This impacts the function setWiFiAclAddConfig of the file /cgi-bin/cstecgi.cgi of the component wireless.so. This manipulation of the argument macAddress causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
A stack-based buffer overflow vulnerability has been identified in the TOTOLINK EX200 wireless range extender, specifically in the web management interface version 5.2.3c.7200. The issue arises in the 'setWiFiAclAddConfig' function within the '/cgi-bin/cstecgi.cgi' file, part of the 'wireless.so' component. The vulnerability can be exploited remotely without authentication or user interaction, by sending an overly long 'macAddress' parameter, which is not properly validated before being appended to a fixed-size stack buffer. This flaw could lead to a denial of service by crashing the wireless service, and potentially allow for arbitrary code execution through stack corruption.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 21, 2026CISA-ADP
Assessed Oct 28, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/qwq-nm/CVE/blob/f5d61361eb7d846479f6d76c0aa4273e9af46d27/CVE2/report.md | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-114383 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1019883 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/424742 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/424742/cti | [email protected] | Content Wall |
| https://www.totolink.net/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TOTOLINK EX200 | V5.2.3c.7200 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 28, 2026 | CVE Modified | CISA-ADP |
| Oct 21, 2026 | New CVE Received | [email protected] |